Q: What happens when bleach and ammonia are mixed together?

Flexi Says:

When ammonia (NH₃) is mixed with bleach (NaOCl), their reaction produces poisonous gases like chloramines (NH₂Cl) and hydrazine (N₂H₄). Exposure to these gases can cause coughing, nausea, shortness of breath, and irritation to the throat, nose, and eyes.